12823751880 has 96 divisors (see below), whose sum is σ = 41695392960. Its totient is φ = 3418174080.

The previous prime is 12823751861. The next prime is 12823751881. The reversal of 12823751880 is 8815732821.

12823751880 is a `hidden beast` number, since 1 + 28 + 2 + 37 + 518 + 80 = 666.

It is a super-2 number, since 2×12823751880² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (12823751881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 998379 + ... + 1011141.

It is an arithmetic number, because the mean of its divisors is an integer number (434327010).

Almost surely, 2^12823751880 is an apocalyptic number.

12823751880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12823751880 is an abundant number, since it is smaller than the sum of its proper divisors (28871641080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12823751880 is a wasteful number, since it uses less digits than its factorization.

12823751880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15571 (or 15564 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 12823751880 in words is "twelve billion, eight hundred twenty-three million, seven hundred fifty-one thousand, eight hundred eighty".